United States. Congress. House, ProQuest (Firm), & United States. Congress. House. Committee on Post Office and Post Roads. (1939). Providing time credits for substitutes in the pneumatic-tube service. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. House, ProQuest (Firm), and United States. Congress. House. Committee on Post Office and Post Roads. Providing Time Credits for Substitutes in the Pneumatic-tube Service. Washington: [publisher not identified], 1939.
MLA (9th ed.) CitationUnited States. Congress. House, et al. Providing Time Credits for Substitutes in the Pneumatic-tube Service. [publisher not identified], 1939.
Warning: These citations may not always be 100% accurate.